12215795 has 4 divisors (see below), whose sum is σ = 14658960. Its totient is φ = 9772632.

The previous prime is 12215779. The next prime is 12215807. The reversal of 12215795 is 59751221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12215795 - 2⁴ = 12215779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1221575 + ... + 1221584.

It is an arithmetic number, because the mean of its divisors is an integer number (3664740).

Almost surely, 2^12215795 is an apocalyptic number.

12215795 is a deficient number, since it is larger than the sum of its proper divisors (2443165).

12215795 is an equidigital number, since it uses as much as digits as its factorization.

12215795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443164.

The product of its digits is 6300, while the sum is 32.

The square root of 12215795 is about 3495.1101556317. The cubic root of 12215795 is about 230.3070568064.

The spelling of 12215795 in words is "twelve million, two hundred fifteen thousand, seven hundred ninety-five".